38738857188864 has 160 divisors (see below), whose sum is σ = 117954233945856. Its totient is φ = 11067470807040.

The previous prime is 38738857188821. The next prime is 38738857188887. The reversal of 38738857188864 is 46888175883783.

It is a super-2 number, since 2×38738857188864² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163494799 + ... + 163731569.

Almost surely, 2^{38738857188864} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38738857188864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58977116972928).

38738857188864 is an abundant number, since it is smaller than the sum of its proper divisors (79215376756992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38738857188864 is a wasteful number, since it uses less digits than its factorization.

38738857188864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252016 (or 252000 counting only the distinct ones).

The product of its digits is 13872660480, while the sum is 84.

The spelling of 38738857188864 in words is "thirty-eight trillion, seven hundred thirty-eight billion, eight hundred fifty-seven million, one hundred eighty-eight thousand, eight hundred sixty-four".